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While reading the dial gauge (A), turn the
crankshaft to bring cylinder 1 to TDC in the
power stroke.
Install a dial gauge (B), complete with mount, on
one of the exhaust valves of cylinder 1,
keeping the probe of the dial gauge as
perpendicular as possible with the upper
surface of the bucket tappet.
Turn the crankshaft anticlockwise while reading
the dial gauge (A), moving the piston by 5
mm.
While reading the dial gauge (A), turn the
crankshaft clockwise to move the piston by
3.24 mm to 1.68 mm (equivalent to 15°
before TDC).
Reset the dial gauge (B) at the exhaust valve lift
value.
Rotate the crankshaft clockwise while reading
the dial gauge (B) until the exhaust valve is
completely closed.
Check that the dial gauge (B) reads a value of
0.60 mm ± 0.08 mm.
Rotate the exhaust camshaft with a wrench to
achieve the correct value indicated.
Immobilise the exhaust camshaft using a
reaction tool.
Apply engine oil SHELL Helix Ultra SAE 5W-40
to the exhaust variable valve timing adjuster
(D), on the surface in contact with the
respective fastener screw indicated.
Pre-tighten the indicated screw.
Tightening torque
Screw (pretightening)
Tighten the indicated screw.
Tightening torque
Screw (with 70° angle)
Nm
Class
50 Nm
A
Nm
Class
100 ÷ 140
0
Nm
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